INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
INSTRUCTION MANUAL
Type CFB
Fixed Capacitor Banks
Low Voltage
Nema 1 (Indoor) and Outdoor enclosed versions
© 2010 Arteche PQ, Inc.
Page 1 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
Table of Contents
1. Introduction and Safety Instructions
2. Basic Power Factor Theory
3. Determine Your Benefits from Improved Power Factor
4. Basic Electrical Diagram
5. Transportation, Handling and Storage
6. Installation and Start-Up Procedures
7. Electrical Connection & Wiring
8. Specifications
9. Technical Data and Dimensions
10. Capacitor Cell Dimensions and Data
11. Maintenance
12. Troubleshooting Guide
© 2010 Arteche PQ, Inc.
Page 2 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
1.0 PRIOR TO INSTALLATION
This manual is intended to serve the user as a general guide for the installation and maintenance of Fixed Power Factor
Capacitor Banks.
The instruction manual must be read carefully before unpacking, installation and maintenance.
Arteche Power Factor Capacitor Banks are designed and intended for compensation of reactive current and power demands
associated with inductive loads (such as induction motors). The customer is responsible for determining the capacitor suitability
for their specific application and for installing, connecting, using and maintaining the capacitor in an appropriate manner and
within its specifications.
1.1 Catalog Numbering System
CFB XXXX XXX NX
XXX
Fixed Capacitor Bank
Capacity rating (kVAr)
Voltage rating (V)
Enclosure
Special Features
Enclosure designation (Add “suffix”):
Nema 1 (indoor)
“N1”
Outdoor
“N3R”
Oiltight/dusttight
“N12”
Special Features designation (Add “suffix”):
Fusing with blown fuse indicator
“FUS”
Circuit Breaker
“ITM”
Catalog No.Example:
A 250 kVAr, 480V, Nema 1, Non-Fused Power Factor Capacitor Bank is defined as: CFB 0250 480 N1
A 75 kVAr, 480V, Nema 1, Fused Power Factor Capacitor Bank is defined as: CFB 0075 480 N1 FUS
Read all safety instructions (next page) prior to beginning installation.
© 2010 Arteche PQ, Inc.
Page 3 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
SAFETY INSTRUCTIONS
!! CAUTION – High Voltage !!
WARNING - THE EQUIPMENT COVERED BY THIS PUBLICATION MUST BE SELECTED FOR A SPECIFIC
APPLICATION AND MUST BE INSTALLED, OPERATED AND MAINTAINED BY QUALIFIED PERSONNEL
WHO ARE THOROUGHLY TRAINED AND WHO UNDERSTAND ANY HAZARDS WHICH MAY BE INVOLVED.
THIS MANUAL HAS BEEN WRITTEN FOR SUCH QUALIFIED PERSONNEL EXCLUSIVELY AND IS NOT
INTENDED TO BE A SUBSTITUTE FOR ADEQUATE TRAINING IN SAFETY PROCEDURES FOR THIS TYPE
OF EQUIPMENT.
WARNING – Only qualified electricians should handle the installation of this capacitor bank, otherwise electric
shock or fire may occur.
CAUTION – Improper handling may cause mis-operation and reduce the life of the capacitor bank.
CAUTION – This manual should be given to the user of this product and should be kept in a safe place until the
capacitor bank is removed from service.
WARNING – Disconnect all electrical power from the circuit into which the capacitor bank is being installed.
Extreme caution must be taken to prevent contact with high voltage during installation, operation and service of this
equipment. Accidental contact with high voltage can result in personal injury or death.
WARNING – Capacitors must be fully dis-charged prior to performing any service, maintenance, or replacement of
any part of the capacitor bank. Capacitors will store energy for a time period of up to five minutes. Using a DC
voltmeter, confirm that the capacitor has entirely discharged as evidenced by zero voltage present between the
capacitor terminals prior to performing installation, operation or service procedures. Accidental contact with
energized parts may cause personal injury or death.
WARNING - There can be several energized parts inside the capacitor bank while power is applied. Disconnect all
electrical power to the circuit before installing or servicing the capacitor bank. Accidental contact with energized
parts may cause personal injury or death.
WARNING – Observe torque requirements for all electrical connections. When making connection using crimp
terminals, be sure to use the crimping tool recommended by the terminal manufacturer. Wire and cable
connections having improper torque may cause fire.
WARNING – The ground terminal should always be connected to the ground using a conductor which is the same
diameter (gauge) as the phase conductor. Lack of ground connection or improper grounding may result in electric
shock or fire.
WARNING - Install capacitor bank in accordance with all applicable local electrical standards (NEC NFPA 70, etc).
Failure to properly install capacitor bank in accordance with local electrical safety standards may cause electric
shock, fire or service disruption.
WARNING – Install capacitor bank in an enclosure that will prevent accidental contact with live parts and by using
proper wire sizes as dictated by local electrical safety standards. Accidental contact with energized parts may
cause personal injury or death.
CAUTION – Install capacitor bank in an enclosure that will prevent foreign matter such as paper, lint, wood chips,
metallic chips from contact with live parts, otherwise fire, personal injury or equipment mis-operation may occur.
We strongly recommend that the installation, operation and maintenance of this equipment be handled by
an electrician, engineer or technically qualified electrician with experience in electrical power equipment.
© 2010 Arteche PQ, Inc.
Page 4 of 25
August 04, 2010
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
2.0
Form No. M07-2012Staco / Aug 2010
Basic Power Factor Theory:
Power Factor compares the active power (kilowatts or kW) with apparent power (KVA) that is demanded from the power source.
It is also a comparison of the active current to the total current., as shown in the triangle below. It is also equal to the cosine of
the angle of displacement between the voltage and current waveforms. The ratio of actual power to apparent power is usually
expressed in percentage and is called power factor.
PF =
kW
= cos ϕ
kVA
Motors, transformers and other inductive equipment in a plant require two kinds of electric power. One type is working power,
measured by the kilowatt (kW). This is what powers the equipment and performs useful work. Secondly, inductive equipment
needs magnetizing power to produce the flux necessary for the operation of inductive devices. The unit of measure of
magnetizing or reactive power is the kilovar (kVAR). The working power (kW) and reactive power (kVAR) together make up
apparent power which is measuredin kilovolt-amperes (kVA). By representing these components (kW and kVAR) of apparent
power (kVA) as the sides of a right triangle, we can determine the apparent power from the right triangle rule. To reduce the kVA
required for any given load, you must shorten the line that represents the kVAR. This is the function of power factor capacitors.
kVA
W ithout PF Capacitor
80 A
Ac tive Current
60 A
100 A
Reactive
Current
T otal Current
W ith PF Capacitor
80 A
2
= kW
2
+ kVAR
2
Most AC power systems require both kW and kVAR. Capacitors installed near the loads in a plant
are the most economical and effective way of supplying these kilovars. If not supplied by local
capacitors, then these kilovars will need to be provided by the electric utility. Low voltage
capacitors are considered a low cost, high reliability and maintenance free means of providing the
needed kilovars.
Capacitors can efficiently supply the reactive current to inductive loads, so those kilovars do not
have to be sent all the way from the utility generator to the inductive loads. This relieves both your
electrical system and utility network of the cost of carrying these extra kilovars. When the utility
supplies these kilovars to you, they often charge you extra for this reactive power. Capacitors can
reduce your utility bill by eliminating these extra charges. They will also help you to regain system
2
capacity, improve voltage and reduce branch circuit I R power losses.
By supplying kVAR right at the load, the capacitor relieves the utility of the burden of carrying the
extra kVAR. This makes the utility transmission/distribution system more efficient, reducing cost for
the utility and their customers.
Ac tive Current
Nearly
0A
80 A
T otal Current
The addition of capacitors has improved power factor by subtracting from the inductive kVARs.
This reactive current is now supplied by the capacitor rather than the utility.
Reactive
Current
kW
ϕ1
ϕ2
k
V
A
R
kV
A
Thus eliminating these kVA
from the kVA demand charge
© 2010 Arteche PQ, Inc.
Let PF
capacitor
supply these
kilovars.
Page 5 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
3.0 Determining your Benefits from improved Power Factor
There are several benefits that can be realized by improving power factor, including lower electric bills,
reduced current in circuit conductors, reduced branch circuit power losses, reduced KVA requirement and
reduced CO2 emissions. Electrical benefits are realized on that portion of the electrical system which is
upstream of the capacitor connection point.
1) Electric Bill – savings depend on your utility rate structure, power factor and demand. Arteche will
calculate this for our customers when you provide a 12 month history of your usage and utility rate
structure (most electric bills include this information).
2) Reduced Current - Power factor capacitors supply the reactive current needed by motors, so this
reactive current does not need to be supplied by the power sources located upstream of the capacitor.
Motor current remains the same, but current measured upstream of the capacitor is reduced.
3) Reduced Branch Circuit Power Losses - Branch circuit conductors in the circuits where capacitors
are applied, will see lower current (upstream of the capacitor connection) and therefore I2 R power
losses in those branch circuits (and in upstream transformers) will be reduced.
4) Reduced KVA - Reduced circuit current results in a proportional reduction of KVA demanded from the
power source. This means that some KVA capacity becomes available to supply additional loads from
the existing power sources. If no additional loads are connected, then this reduces the KVA
demanded form your utility.
5) Reduced CO2 Emissions - When current and KVA demand are reduced, then less KVA is required
from utility electricity generation, thus less carbon dioxide is produced.
Estimate your CO2 emissions reduction (based on USA national average):
kVA reduction x number of operating hours x 1.34 = lbs CO2 saved
Example: Facility with 800kW and PF = 0.80 improves to PF = 0.95 (3000 hours per year).
Current situation:
800 ÷ 0.800 = 1000KVA [600kVAR]
Improved situation:
800 ÷ 0.950 = 842KVA [262.6 kVAR]; reduces kVA is 1000 – 842 = 158 kVA.
CO2 emissions reduction: 317.6 Tons [288 metric tons] per year
800 KW
ϕ1
ϕ2
k
V
A
R
262.6 kVAR
kV
A
Thus eliminating these kVA
from the kVA demand charge
337.4 kVAR
158 x 3000 x 1.34 = 635,160 lbs CO2 [ 317.6 Tons CO2 ; 288 metric tons CO2 ]
© 2010 Arteche PQ, Inc.
Page 6 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
4.0 Basic Electrical Diagram (shown with fuses and blown fuse indicators)
5.0 Transportation, Handling and Storage
Fixed capacitor systems are packed in corrugated cardboard boxes and as necessary will be over-packed and
shipped in wooden crates to offer maximum protection during shipment. Transportation and handling of the
capacitor system must always be done with the capacitor bank in a vertical position.
Upon arrival, the packing list and shipment should be carefully checked for completeness. The crating must be
examined for transit damage. In the event of visible transit damage, a claim must be filed immediately with the
carrier. In the event that the equipment is not installed immediately after arrival, it should be placed in
intermediate storage without removing the packing. In this case, the crates are to be stored on a level area of
sufficient strength to bear their weight and in a clean and non-corrosive atmosphere. If the intermediate
storage is outdoors the period of storage must be limited to approximately 6 months, depending on the
atmospheric conditions. This storage time will only affect the wooden packing and will not affect capacitor
cells.
© 2010 Arteche PQ, Inc.
Page 7 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
1
6.0 Installation
WARNING – Disconnect all electrical power from the circuit into which the capacitor bank is
being installed. Extreme caution must be taken to prevent contact with high voltage during
installation, operation and service of this equipment. Accidental contact with high voltage can
result in personal injury or death.
6.1 Mechanical Installation
Picture is for reference only - actual appearance may vary
To open the capacitor bank enclosure, remove two screws located on each side (near top). Grasp the
front cover and tilt it forward and downward to unlatch tabs at enclosure bottom.
6.1.1
Inspect the capacitor both internally and externally to make sure that no physical damage has occurred
during shipment or handling.
6.1.2
Power factor capacitor banks must be installed only by trained and qualified personnel.
6.1.3
Capacitor banks should be located in a well ventilated area. The place selected for the installation
must have a minimum of 2 inches space around all sides of the capacitor bank enclosure to assure
good air circulation. Equipment rated for indoor use should be installed indoors in a dry environment.
Mechanically secure the capacitor bank to either the wall or floor.
© 2010 Arteche PQ, Inc.
Page 8 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
6.1.4
Connect the capacitor bank by securing power (feeder) conductors into the lugs and tighten per chart
below. Connect ground conductor into grounding lug and secure by tightening per torque
requirements chart in section 6.4).
6.1.6
Conduit sizes, tray sizes and cable ampacity must be according National Electrical Code or applicable
electrical codes in your area.
After the capacitor bank has been mechanically installed, verify the torques of all the electrical connections, as
per the bolt tightening torque chart in Section 6.3. Make sure the equipment is properly connected to ground
using the grounding terminal provided.
6.2 Electrical Installation
WARNING – Disconnect all electrical power from the circuit into which the capacitor bank
is being installed. Extreme caution must be taken to prevent contact with high voltage
during installation, operation and service of this equipment. Accidental contact with high
voltage can result in personal injury or death.
1
WARNING - Whenever using current transformers, never energize the circuit if the secondary leads of
the current transformer are not connected to a suitable load or otherwise adequately shorted circuit !!
WARNING – Only qualified electricians should handle the installation of this capacitor bank, otherwise electric
shock or fire may occur.
6.2.1
See Section 7.0 for alternative methods of connecting power factor capacitors in motor circuits.
6.2.2
In accordance with NEC 460, power factor capacitors must be provided with a disconnecting means
and over current protection. When connecting the capacitor bank on the load side of a motor starter
overload relay, it is not necessary to provide a disconnecting device or over current protection. Fuses
should be rated at least 165% of rated capacitor current. A circuit breaker should be rated at least
135% of the rated capacitor current.
6.2.3
Proceed to connect the feeder cables to the main switch. This operation must be performed with the
equipment completely de-energized.
6.2.4
Verify the torque of all terminals (Interrupting, fuses, contactors, etc.), as they may have loosened
during transportation. See table in Section 6.3.
© 2010 Arteche PQ, Inc.
Page 9 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
6.3 General Bolt Tightening Torque Requirements
Use these torque values unless directed otherwise elsewhere in this manual.
Bolt Diameter
TPI
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1 1/8
1 1/4
1 3/8
1 1/2
1 5/8
1 3/4
1 7/8
2
2 1/4
2 1/2
2 5/8
2 3/4
3
20
18
16
14
13
12
11
10
9
8
88
8
8
8
8
8
8
8
8
8
8
8
8
ASTM A193 GR B7, B8, B16, B8M
bolting & K-500 monel with a bolt stress
of 60,000 PSI
14
21
30
45
65
95
135
230
360
535
815
1,125
1525
1900
2540
3240
4075
4990
6665
8525
9525
10525
13760
6.4
Start-up Procedure
6.4.1
Prior to energizing the capacitor bank, make sure that all electrical connections are secured with
proper torque as per chart in Section 6.3.
6.4.2
Connect power to capacitor bank (energize through upstream switch). Using an ammeter, measure
capacitor current in each phase and verify that it is consistent (+/- 10%) with the current rating stated
on the nameplate. Using a voltmeter, measure phase to phase voltage and verify that it is consistent
(+/- 10%) with the voltage rating stated on the nameplate.
6.4.3
It is recommended that both the voltage and current be measured again after approximately 24 hours
of operation.
6.4.4
During normal operation, fuse indicator lamps (when included) will be OFF. An illuminated lamp
indicates that a fuse is open (blown). In the event that fuses in two or more of the phases are open, all
lamps will be illuminated.
© 2010 Arteche PQ, Inc.
Page 10 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
7.0 Electrical Connection Alternatives
Arteche power factor capacitor banks may be connected in a variety of locations, such as at the induction
motor (which has low power factor), on a distribution panel, transformer secondary, substation secondary,
main switchboard, etc. The benefits of improved power factor are realized upstream of the connection point.
7.1 Connection of Power Factor Capacitor on Load Side of Motor Overload Relay.
For connection at this location, you may use (per NEC) a non-fused capacitor bank. The overload relays will
see lower current, so it is necessary to change the (full load current) setting of overload relays.
NOTE: Change overload relay full load current (FLA) setting:
Use this formula to calculate the new full load current that will be seen by the overload relays. Select overload
relay (setting) based upon this new full load current value.
FLAnew =
© 2010 Arteche PQ, Inc.
PFold
* FLAnameplate
PFnew
Page 11 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
7.2 Connection of Power Factor Capacitor on Line Side of Motor Starter, or Anywhere on
Facility Power System (Distribution Panel, Transformer, Substation, etc.).
For connection at this location, it is necessary for the capacitor bank to be protected against over-current
and to have its own means of disconnecting it from the supply. This requires either a disconnect switch
and a set of fuses or a circuit breaker. For this point of connection, it is common to use either a capacitor
bank with an internal circuit breaker or a fused capacitor bank with an external means of disconnect.
Fused Capacitor bank with external disconnect switch
Capacitor bank with internal circuit breaker (serves as both disconnect & over-current protection)
© 2010 Arteche PQ, Inc.
Page 12 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
7.3 Typical Internal Capacitor Wiring Techniques.
Depending on the rated voltage and kVAr, capacitor cells used in a capacitor bank may be connected either in
delta or wye configuration.
7.3.1 Examples of Delta Connected Capacitors.
© 2010 Arteche PQ, Inc.
Page 13 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
7.3.2 Examples of Wye Connected Capacitors.
© 2010 Arteche PQ, Inc.
Page 14 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
8.0
August 04, 2010
Form No. M07-2012Staco / Aug 2010
General Specifications:
Electrical Characteristics
Rated Voltage:
Frequency:
Maximum Voltage:
Maximum Capacity:
Maximum Current:
Maximum Harmonic Distortion:
Capacitor Type:
Fuse AIC Rating:
Internal Protection:
Capacitor Connection:
Capacitance Tolerance:
Capacitor Discharge Device:
Dielectric System:
Dielectric Strength:
Power Losses:
Design Service Life:
50Hz Ratings: 200, 240, 380, 415, 690
60Hz Ratings: 208, 240, 480, 600
50Hz and 60Hz available
110% of capacitor rating
135% of rated reactive power
135% of rated capacitor current
10% THD-v at 25°C
Metalized polypropylene; Self healing
200kA fuses typical
Internal pressure switch
DELTA is typical, WYE is available
+/- 4% of rated capacitance
External resistors reduce voltage to <50V within 1 minute after
de-energization.
Oil filled; non PCB
2 x V(rated) + 1000V as per UL
<0.5 watts per kVAr at 25°C
480,000 hours at 50C
Mechanical Characteristics
Enclosure Type:
Metal (steel) enclosure
Capacitor Cell Case Type:
Aluminum case
Terminals:
Solid copper, pressure type
Environmental Characteristics
Operating Temperature:
Storage Temperature:
Altitude:
Relative Humidity:
80C maximum capacitor cell external case temperature
-40°C to + 65°C
1000 meters maximum (without derating)
0-95% non-condensing
Standards and Approvals
UL 810 (USA & Canada):
UL-508A (USA & Canada):
© 2010 Arteche PQ, Inc.
File # E227040
File # E311756
Page 15 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
9.0 Technical Data:
9.1 Using PF capacitors on other power systems
Power factor capacitors may be applied to power systems with actual voltage equal to or less than the
rated capacitor voltage but the effective kVAR will be reduced. Capacitors may also be used on either
50hz or 60hz systems but with possible derating. Use the chart below to determine the effective kVAR of
a capacitor is used on system with voltage or frequency ratings that are different than the capacitor
ratings. Never connect capacitors to a system with higher voltage than the capacitor rated voltage.
Capacitor Rating
Volts
Hz
600
480
440
380
240
220
208
60
60
60
60
60
60
60
Volts 600
480
Hz
60
60
1.000 0.640
1.000
Your Power System Rating
440
415 380 380 240 240
60
50
60
50
60
50
0.538 0.399 0.401 0.334 0.160 0.133
0.840 0.623 0.627 0.522 0.250 0.208
1.000 0.741 0.746 0.622 0.298 0.248
1.000 0.833 0.399 0.332
1.000 0.833
220
60
0.134
0.210
0.250
0.335
0.840
1.000
220
50
0.112
0.175
0.208
0.279
0.700
0.833
208
60
0.120
0.188
0.223
0.300
0.751
0.894
1.000
200
50
0.093
0.145
0.172
0.231
0.579
0.689
0.770
Example: A capacitor rated 100 kvar, 480V, 60Hz may be used on a 240 volt, 60Hz power system but it’s effective
capacity will be reduced as follows: 100kVAR x 0.250 = 25 kVAR.
© 2010 Arteche PQ, Inc.
Page 16 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
9.2 Physical data (Refer to enclosure drawings in section 9.5)
9.2.1 240V, NON-FUSED; Nema 1 indoor + outdoor enclosures
Field Wiring
Non - Fused
KVAR
FLA
Size
Mass
Fuse
Switch
Catalog Number
@240
Volts
60Hz
Current
(amps)
Enclosure
Type
Weight
(lbs)
Suggested
Fuse rating
Class J
Suggested
Disconnect
Switch
Rating
Wire Size
90C Cu
30C
ambient
CFB 0002.5 240 N(X)
CFB 0003.5 240 N(X)
CFB 0004 240 N(X)
CFB 0005 240 N(X)
CFB 0006 240 N(X)
CFB 0007.5 240 N(X)
CFB 0010 240 N(X)
CFB 0012.5 240 N(X)
CFB 0015 240 N(X)
CFB 0017.5 240 N(X)
CFB 0020 240 N(X)
CFB 0022.5 240 N(X)
CFB 0025 240 N(X)
CFB 0027.5 240 N(X)
CFB 0030 240 N(X)
CFB 0035 240 N(X)
CFB 0040 240 N(X)
CFB 0045 240 N(X)
CFB 0050 240 N(X)
2.5
3.5
4
5
6
7.5
10
12.5
15
17.5
20
22.5
25
27.5
30
35
40
45
50
6.0
8.4
9.6
12.0
14.4
18.0
24.1
30.1
36.1
42.1
48.1
54.1
60.1
66.2
72.2
84.2
96.2
108.3
120.3
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
4B
4B
4B
4B
4B
4B
5B
5B
11.88
11.88
11.88
11.88
13.86
13.86
13.86
18.7
18.7
20.68
20.68
24.86
24.86
26.84
26.84
28.82
30.8
57.42
59.4
10
15
20
20
25
30
40
50
60
70
80
90
100
125
125
150
175
200
200
30
30
30
30
30
30
60
60
60
100
100
100
100
200
200
200
200
200
200
14
14
14
14
14
12
10
8
8
6
6
4
4
1/0
1/0
1/0
1/0
1/0
2/0
CFB 0060 240 N(X)
60
144.3
8B
78.76
250
400
3/0
CFB 0070 240 N(X)
70
168.4
8B
82.72
300
400
4/0
CFB 0075 240 N(X)
75
180.4
8B
84.7
300
400
250MCM
CFB 0100 240 N(X)
100
240.6
8B
105.6
400
400
2*2/0
CFB 0125 240 N(X)
125
300.7
OPT
121
500
600
2*4/0
CFB 0150 240 N(X)
150
360.9
OPT
132
600
600
2*250MCM
© 2010 Arteche PQ, Inc.
Lug
Capacity
14-6 AWG
14-6 AWG
14-6 AWG
14-6 AWG
14-6 AWG
14-6 AWG
14-2 AWG
14-2 AWG
14-2 AWG
14-1/0
14-1/0
14-1/0
14-1/0
14-1/0
14-1/0
14-1/0
14-1/0
14-1/0
14/2/0
6 AWG 250 MCM
6 AWG –
250 MCM
6 AWG –
250 MCM
2* (6AWG –
250MCM)
2* (6AWG –
250MCM)
2* (6AWG –
250MCM)
Page 17 of 25
Lug
Tightening
Torque
(lb-in)
35
35
35
35
35
35
45
45
45
45
45
45
45
50
50
50
50
50
50
275
275
375
375
375
375
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
9.2.2 240V, FUSED; Nema 1 indoor + outdoor enclosures
Non - Fused
KVAR
FLA
Size
Mass
Catalog Number
@240
Volts
60Hz
Current
(amps)
Enclosure
Type
Weight
(lbs)
CFB 0002.5 240 N(X) FUS
CFB 0003.5 240 N(X) FUS
CFB 0004 240 N(X)FUS
CFB 0005 240 N(X) FUS
CFB 0006 240 N(X) FUS
CFB 0007.5 240 N(X) FUS
CFB 0010 240 N(X) FUS
CFB 0012.5 240 N(X) FUS
CFB 0015 240 N(X) FUS
CFB 0017.5 240 N(X) FUS
CFB 0020 240 N(X) FUS
CFB 0022.5 240 N(X) FUS
CFB 0025 240 N(X) FUS
CFB 0027.5 240 N(X) FUS
CFB 0030 240 N(X) FUS
CFB 0035 240 N(X) FUS
CFB 0040 240 N(X) FUS
CFB 0045 240 N(X) FUS
CFB 0050 240 N(X) FUS
2.5
3.5
4
5
6
7.5
10
12.5
15
17.5
20
22.5
25
27.5
30
35
40
45
50
6.0
8.4
9.6
12.0
14.4
18.0
24.1
30.1
36.1
42.1
48.1
54.1
60.1
66.2
72.2
84.2
96.2
108.3
120.3
2B
2B
2B
2B
2B
2B
2B
2B
2B
4B
4B
4B
4B
4B
4B
5B
5B
8B
8B
5.5
7.7
8.8
11.0
13.2
16.7
16.7
18.7
18.7
22.9
22.9
49.5
49.5
51.5
51.5
68.9
70.8
72.8
85.8
CFB 0060 240 N(X) FUS
60
144.3
8B
CFB 0070 240 N(X) FUS
70
168.4
CFB 0075 240 N(X) FUS
75
CFB 0100 240 N(X) FUS
Fuse
Field Wiring
Switch
Suggested
Disconnect
Switch
Rating
Wire Size
90C Cu
30C
ambient
10
15
20
20
25
30
40
50
60
70
80
90
100
125
125
150
175
200
200
30
30
30
30
30
30
60
60
60
100
100
100
100
200
200
200
200
200
200
14
14
14
14
14
12
10
8
8
6
6
4
4
1/0
1/0
1/0
1/0
1/0
2/0
89.8
250
400
3/0
8B
93.7
300
400
4/0
180.4
OPT
95.7
300
400
250MCM
100
240.6
OPT
118.8
400
400
2*2/0
CFB 0125 240 N(X) FUS
125
300.7
OPT
127.6
500
600
2*4/0
CFB 0150 240 N(X) FUS
150
360.9
OPT
138.6
600
600
2 *250MCM
© 2010 Arteche PQ, Inc.
Fuse
Rating
Lug
Capacity
14-6 AWG
14-6 AWG
14-6 AWG
14-6 AWG
14-6 AWG
14-6 AWG
14-2 AWG
14-2 AWG
14-2 AWG
14-1/0
14-1/0
14-1/0
14-1/0
14-1/0
14-1/0
14-1/0
14-1/0
14-1/0
14/2/0
6 AWG250 MCM
6 AWG250 MCM
6 AWG250 MCM
2* (6AWG250MCM)
2* (6AWG250MCM)
2* (6AWG250MCM)
Page 18 of 25
Lug
Tightening
Torque
(lb-in)
35
35
35
35
35
35
45
45
45
45
45
45
45
50
50
50
50
50
50
275
275
375
375
375
375
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
9.2.3 480V, FUSED; Nema 1 indoor + outdoor enclosures
9.2.4 480V, NON-FUSED; Nema 1 indoor + outdoor enclosures
9.2.5 600V, FUSED; Nema 1 indoor + outdoor enclosures
9.2.6 600V, NON-FUSED; Nema 1 indoor + outdoor enclosures
© 2010 Arteche PQ, Inc.
Page 19 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
9.5 Enclosures
9.5.1 Size 2B – 8B Enclosures (Nema 1 and also for outdoor use)
shown with optional blown fuse indicators
Approximate Enclosure Dimensions
Enclosure
Size
2B
4B
5B
8B
A
B
C
Height
Width
Depth
(inches) (inches) (inches)
14.0
15.0
6.5
18.3
20.3
6.5
20.9
20.7
6.5
29.6
28.5
6.5
Mounting Slot (units are in millimeters)
Conversion (mm : inches)
11mm
19mm 29mm
0.433 in 0.75 in 1.14 in
© 2010 Arteche PQ, Inc.
Page 20 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
9.5.2 Size OPT Enclosures (Nema 1 and also for outdoor use)
shown with optional blown fuse indicators
Approximate Enclosure Dimensions
Enclosure
Size
OPT
A
B
C
Height
Width
Depth
(inches) (inches) (inches)
42.0
30.0
12.0
Mounting holes
Cabinet Mounting Holes
(center to center )
vertical
Horizontal
39.00 in
27.50 in
Rear view showing mounting holes
© 2010 Arteche PQ, Inc.
Page 21 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
9.6.1 Capacitor Dimensions and Data:
9.6.2 Individual Capacitor Cells - Dimensions and Weights.
Note: M12 = 0.472 in diameter (use 0.500 dia. Mounting hole)
© 2010 Arteche PQ, Inc.
Page 22 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
10.0 Maintenance
WARNING – Disconnect all electrical power from the capacitor prior to maintenance. Wait at least two
minutes for capacitors to fully discharge prior to servicing this equipment. Extreme caution must be
taken to prevent contact with high voltage during service of this equipment. Accidental contact with
high voltage can result in personal injury or death.
Generally, Power Factor Capacitor Banks are considered to be maintenance free. During the course of normal operation, the
capacitor cells will experience minute levels of expansion and contraction due to fluctuations in operating and ambient
temperatures. Over time, the capacitance value my decrease, especially when self-protection occurs.
The following inspections should be made during regular maintenance intervals, or semi-annually.
- Periodically inspect the individual capacitor cells for bulging. If the top (terminal area) is bulging, then it is likely that the
pressure switch has opened and the capacitor is no longer operational. For proper performance, any failed capacitor cells
should only be replaced with direct factory replacements.
- To verify the general condition of the capacitors, take a current measurement in each capacitor phase. A discrepancy in
current between phases may indicate a failed capacitor cell. For proper performance, any failed capacitor cells should only be
replaced with direct factory replacements.
- Remove any dust and dirt that may have accumulated within your capacitor cabinet. Check to assure that the enclosure is
properly and adequately ventilated.
- Routinely check to see that wire terminations are securely fastened to capacitor terminals.
- Routinely check torque on all terminations. Verify they are in compliance with the torque chart in Section 6.3..
The following maintenance items require the capacitor to be energized and should be performed only by trained and qualified
personnel.
WARNING – Only qualified electricians should handle the installation of this capacitor bank, otherwise electric
shock or fire may occur.
- Measure the voltage between each of the phases and verify it is within +/-10% of the voltage rating stated on the nameplate.
Measure the current in each capacitor phase and verify it is within +/-10% of current rating stated on the nameplate.
© 2010 Arteche PQ, Inc.
Page 23 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
11.0 Troubleshooting Guide
Symptom
Indicator
glowing
Problem
lamp
Blown fuse
Capacitor
phase
currents are not
balanced
Blown fuse or
failed capacitor
Capacitor failure
Harmonics
Blown fuse
Harmonics
© 2010 Arteche PQ, Inc.
Solution
Disconnect power to capacitor bank. Wait two minutes before continuing. Locate the
blown fuse and its associated capacitor cell(s). Inspect capacitors(s) for bulging or other
indication of failure. Replace blown fuse and failed capacitors. Contact factory for
replacement capacitors.
Identify blown fuse and/or failed capacitor (look for bulge at top) and replace using
exact replacement. Contact factory for replacement capacitors.
Apply harmonic filter to harmonic producing load(s) or replace
detuned capacitor bank to minimize the flow of harmonic currents
Arteche for harmonic filters and detuned capacitor banks.
Apply harmonic filter to harmonic producing load(s) or replace
detuned capacitor bank to minimize the flow of harmonic currents
Arteche for harmonic filters and detuned capacitor banks.
capacitor bank with
in capacitor. Contact
capacitor bank with
in capacitor. Contact
Page 24 of 25
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR
Fixed Power Factor Capacitor Banks
August 04, 2010
Form No. M07-2012Staco / Aug 2010
For technical support and application engineering assistance, please contact:
ARTECHE PQ, INC.
16964 West Victor Road
New Berlin, WI 53151
Phone: 1-262-754-3883
Fax: 1-262-754-3993
© 2010 Arteche PQ, Inc.
Page 25 of 25